Automatic water tank lid with float valve for GE Profile Opal 1.0 1 GALLON side tank Countertop Nugget Ice Maker. With this custom water tank cover and float fill valve you can connect 1/4" water line to automatically fill the bottom half of the side water tank and never have to refill water tank again. Comes lid and float valve. Ice maker, tank and water line NOT INCLUDED. DOES NOT FIT Opal 2.0XL. ONLY 1 GALLON side tank for OPAL 1.0. You need 1/4 plastic water line with a shut off valve, so you can disconnect water to clean the tank. to install just remove blue tubing retainer, connect 1/4" plastic water line and replace blue tubing retainer, and turn on the water. Valve will shut off once tank is full.